A physicist and his biologist son destroyed a common virus using a superfast pulsing laser, without harming healthy cells. The discovery could lead to new treatments for viruses like HIV that have no cure.

"We have demonstrated a technique of using a laser to excite vibrations on the shield of a virus and damage it, so that it's no longer functional," said Kong-Thon Tsen, a professor of physics at Arizona State University. "We're testing it on HIV and hepatitis right now."

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